The following index is provided as an overview of and topical guide to science: Links to articles and redirects to sections of articles which provide information on each topic are listed with a short description of the topic. When there is more than one article with information on a topic, the most relevant is usually listed, and it may be cross-linked to further information from the linked page or section. Science (from Latin scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The branches of science, also referred to as scientific fields, scientific disciplines, or just sciences, can be arbitrarily divided into three major groups:
The natural sciences (biology, chemistry, physics, astronomy, and Earth sciences), which study nature in the broadest sense; The social sciences (e.g. psychology, sociology, economics, history) which study people and societies; and The formal sciences (e.g. mathematics, logic, theoretical computer science), which study abstract concepts. Disciplines that use science, such as engineering and medicine, are described as applied sciences.
A Abiology – Life arising from non-living matterPages displaying short descriptions of redirect targets – study of inanimate, inorganic, or lifeless things. Abiophysiology – The study of non-organic biological processes Acanthochronology – Study of cactus spines and the chronology of their growth Acanthology – The study of spined things, in particular sea urchins, and the resultant impact on taxonomy Acarology – Study of mites and ticks Aceology – The study of therapies – science of remedies, or of therapeutics; iamatology. Acology – Science of medical remedies, or of therapeutics. Acoustics – Branch of physics involving mechanical waves – the branch of physics studying the properties of sound. Actinobiology – Study of effects of radiation on living things – synonymous with radiobiology. Adenology – Branch of medicine dealing the endocrine system Aerobiology – Study of airborne organisms Aerodonetics – Science or study of gliding flight. Aerodynamics – Branch of dynamics concerned with studying the motion of air Aerolithology – Science of meteorites – study of aerolites; meteorites. Aerology – Synonym for atmospheric science Aeronautics – Science of air flight-capable machines Aeropalynology – Study of pollen and spores in Earths atmosphere – study of pollens and spores in atmosphere. Aerospace engineering – Branch of engineering Aerostatics – Study of gases that are not in motion Agnoiology – Study of ignorance Agonistics – Chemical which binds to and activates a biochemical receptorPages displaying short descriptions of redirect targets Agricultural chemistry – Agricultural sub-discipline of applied chemistry – study of influence in chemical processes in plants. Agriology – comparative study of primitive peoples. Agrobiology – Interdisciplinary studies of the interactions between plants and soil Agroecology – Study of ecological processes in agriculture Agrogeology – Study of origins and applications of minerals important to farming Agrology – The study of soils, especially agricultural soils. Agronomics – Branch of economics about distribution, management, and productivity of land. Agronomy – Science of producing and using plants Agrostology – Scientific study of the grasses Algebra – Branch of mathematics - study of algebraic structures and the operations they use Algedonics – Branch of psychology that deals with pleasant and unpleasant states of consciousness Algology – Branch of biology concerned with the study of algae (botany) Algology – Medical treatment of pain as practiced in Greece and Turkey Allergology – Study of the causes and treatment of allergies - study of causes and treatment of allergies Anaesthesiology – Medical specialty concerned with anesthesia and perioperative carePages displaying short descriptions of redirect targets Anatomy – Study of the structure of organisms Andragogy – Methods and principles in adult education Andrology – Medical specialty – study of men's physiology. Anemology – Study of winds – study of wind. Angiology – Branch of internal medicine, which deals with vascular disease Anthropobiology – Biological study of the human species – study of human biology. Anthropology – Scientific study of humans, human behavior, and societies – study of human cultures. Anthrozoology – Subset of ethnobiology – study of human-animal interaction. Apiology – Scientific study of bees Aquatic ecology – The study of interactions between organisms and the environment in water Arachnology – Scientific study of arachnids Archaeology – Study of human activity based on materials left behind Archival science – Science of storage, registration and preservation of historical data Archology – science of the origins of government. Areology – Scientific study of the surface, crust, and interior of the planet Mars Aristology – science or art of dining. Aromachology – Study of the influence of odors on human behavior Arthrology – Scientific study of joints and articulations Arthropodology – Study of arthropods Astacology – Scientific study of crayfish Asteroseismology – Study of oscillations in stars Astheniology – Physical symptomPages displaying short descriptions of redirect targets – study of diseases of weakening and aging. Astrobotany – Study of plants grown in spacecraft Astrobiology – Science concerned with life in the universe Astrodynamics – Field of classical mechanics concerned with the motion of spacecraftPages displaying short descriptions of redirect targets Astrogeology – Geology of astronomical objects apparently in orbit around stellar objects Astronautics – Theory and practice of space travel Astronomy – Scientific study of celestial objects Astrophysics – Subfield of astronomy – study of behaviour of interstellar matter. Audiology – Branch of science that studies hearing, balance, and related disorders Autecology – Study of interactions of individual organisms with the environment Automata theory – Study of abstract machines and automata Auxology – Study of all aspects of human physical growth
B Bacteriology – Subdiscipline of microbiology that studies bacteria Ballistics – Science of the motion of projectiles Balneology – Method of treating diseases by bathingPages displaying short descriptions of redirect targets – science of the therapeutic use of baths. Barodynamics – science of the support and mechanics of heavy structures Bathymetry – Study of underwater depth of lake or ocean floors Batology – Study of brambles Batrachology – Branch of herpetology that studies amphibians Behavioural genetics – Study of genetic-environment interactions influencing behaviour Behavioral neuroscience – Study of biological and neural mechanisma in behaviour Bibliology – Organized listing of books and the systematic description of them as objects Bibliotics – study of documents to determine authenticity. Bioecology – Study of interrelations of plants and animals with their environment Biogeochemistry – Study of chemical cycles of the earth related to biological activity Biology – Scientific study of life Biochemistry – Study of chemical processes of living organisms Biomechanics – Study of the mechanics of biological systems Biometrics – Metrics related to human characteristics Bionomics – Term with different meanings in ecology or economics – study of organisms interacting in their environments. Biophysics – Interdisciplinary science – study of physics of biological phenomena. Biopsychology – Study of biological and neural mechanisma in behaviourPages displaying short descriptions of redirect targets – application of the science of biology to the study of psychology. Biotribology – Study of friction, wear and lubrication in biological systems – study of friction, wear and lubrication of biological systems. Botany – Study of plant life Bromatology – Applied science devoted to the study of foodPages displaying short descriptions of redirect targets – study of food. Bryology – Branch of botany concerned with the study of bryophytes – study of mosses and liverworts.
C Cacogenics – Decrease in genetic traits deemed desirable and study thereof Caliology – Place where a bird lays its eggsPages displaying short descriptions of redirect targets – study of bird's nests. Campanology – Scientific and musical study of bells Carcinology – Study of crustaceans Cardiology – Branch of medicine dealing with the heart Caricology – Study of sedges Carpology – Study of seeds and fruit Cartography – Study and practice of making maps – science of making maps and globes. Castrametation – Roman term for a fortified military basePages displaying short descriptions of redirect targets – art of designing a camp. Catallactics – Theory about the free market system in economies – science of commercial exchange. Celestial mechanics – Branch of astronomy – study of motion of objects in outer space. Cell biology – Branch of biology that studies cells – study of the different structures and functions of both eukaryote and prokaryote cells. Cetology – Study of whales, dolphins, porpoises, and other cetaceans – study of whales and dolphins. Chaology – Field of mathematics and science based on non-linear systems and initial conditions Chaos theory – Field of mathematics and science based on non-linear systems and initial conditions Characterology – Academic study of character – study of development of character. Chemistry – Scientific study of matter's behavior and properties – study of properties and behaviours of substances. Chirography – Study of penmanship and handwriting in all of its aspects – study of handwriting or penmanship. Chiropody – Medicine branch focusing on the human lower extremities Chorology – Study of geographic causal relationships – science of the geographic description of anything. Chrematistics – Economics theory studying money – study of wealth; political economy. Chromatics – Technique to quantify and describe physically the human color perception – study of color. Chronobiology – Study of rhythms in biological processes of living organisms – study of biological rhythms. Chrysology – study of precious metals. Classical mechanics – Description of large objects' physics – study of motion of macroscopic objects. Climatology – Scientific study of climate – study of climate. Codicology – Study of codices or manuscript books Cognitive science – Interdisciplinary scientific study of cognitive processes Coleopterology – Branch of entomology studying beetles Cometology – study of comets. Computer science – Study of computation – study of processes that interact with data. Conchology – Study of mollusc shells Coniology – Study of atmospheric dust and its effects Connectomics – Study of mapping wiring diagrams Contact mechanics – Study of the deformation of solids that touch each other Coprology – Study of faeces Cosmetology – Study and application of beauty treatment – study of cosmetics. Cosmochemistry – Study of the chemical composition of matter in the universe Cosmology – Study of the universe Craniology – Pseudoscientific study of human skull shapePages displaying short descriptions of redirect targets – study of the skull. Criminology – Field of studies related to crimes Cryobiology – Study of effects of extreme low temperatures on life Cryptography – Practice and study of secure communication techniques Cryptology – Practice and study of secure communication techniquesPages displaying short descriptions of redirect targets – study of codes. Cybernetics – Study of circular causal processes Cyclonology – study of tropical cyclones, e.g. hurricanes. Cynology – Study of canines or domestic dogs Cytology – Study of cells in terms of structure, function and chemistry
D Dactyliology – study of finger rings. Dactylography – Scientific study of fingerprints Dactylology – Form of communication using one or both handsPages displaying short descriptions of redirect targets – study of sign language. Data science – Field of study to extract knowledge from data – study of analyzing, processing, interpreting and extracting data. Demography – Study of human populations and their structures Demology – study of human populations and behaviour. Dendrochronology – Method of dating based on the analysis of patterns of tree rings Dendrology – Science and study of woody plants Dermatoglyphics – Scientific study of finger- and toeprints Dermatology – Field of medicine dealing with the hair, nails, skin, and its diseases Desmology – Study of ligaments Dialectology – Scientific study of linguistic dialect Dietetics – Study of diet and nutrition in relation to health and disease Dioptrics – Science of light and lenses Diplomatics – Academic study of the protocols of documents – science of deciphering ancient writings and texts. Dosiology – study of dosage of drugs. Dynamics – Study of forces and their effect on motion Dysgenics – Decrease in genetic traits deemed desirable and study thereof.
E Eccrinology – Sweat gland distributed almost all over the human bodyPages displaying short descriptions of redirect targets – study of excretion. Ecology – Study of organisms and their environment Economics – Social science studying goods and services – study of material wealth (production, distribution, and consumption of goods and services). Edaphology – Science concerned with the influence of soils on living beings Egyptology – Scientific study of ancient Egypt – study of ancient Egypt. Eidology – study of mental imagery. Ekistics – Conceptual framework Electrochemistry – Branch of physical chemistry – study of relations between electricity and chemicals. Electrodynamics – Fundamental interaction between charged particlesPages displaying short descriptions of redirect targets – study of the effects arising from the interactions of electric currents with magnets, with other currents, or with themselves. Electrohydrodynamics – Study of electrically conducting fluids in the presence of electric fields – the study of dynamics of electrically charged fluids. Electrology – Method of hair removal – study of electricity. Electrostatics – Study of still or slow electric charges – study of static electricity. Electromagnetism – Fundamental interaction between charged particles – study of electromagnetic force. Embryology – Branch of biology studying prenatal development Emetology – Expulsion of stomach contents via the mouth or nosePages displaying short descriptions of redirect targets – study of vomiting. Emmenology – study of menstruation. Endemiology – study of local diseases. Endocrinology – Branch of medicine pertaining to the endocrine system Energetics – study of energy under transformation within various fields. Engineering studies – Academic field – study of engineering. Enigmatology – Problem or enigma that tests a person's ingenuityPages displaying short descriptions of redirect targets – study of enigmas (puzzles). Entomology – Scientific study of insects Entozoology – study of parasites that live inside larger organisms. Enzymology – Large biological molecule that acts as a catalystPages displaying short descriptions of redirect targets – study of enzymes. Ephebiatrics – Medical subspecialty for adolescentsPages displaying short descriptions of redirect targets – branch of medicine dealing with adolescence. Epidemiology – Study of health and disease within a population Epileptology – Physician specializing in epileptologyPages displaying short descriptions of redirect targets – study of epilepsy. Eremology – study of deserts. Ergology – study of effects of work on humans. Ergonomics – Designing systems to suit their users – study of people at work. Escapology – Practice of escaping from restraints – study of freeing oneself from constraints. Ethnobiology – Study of how living things are used by human cultures – study of dynamic relationships between peoples. Ethnobotany – Study of traditional plant use – study of a region's plants and their practical uses through the traditional knowledge of a local culture and people. Ethnogeny – study of origins of races or ethnic groups. Ethnochoreology – Field of dance study – study of dances and its implication in culture. Ethnomusicology – Study of the cultural aspects of music – study of comparative musical systems. Ethnology – Branch of anthropology – study of cultures. Ethnomethodology – Study of how social order is produced – study of everyday communication and social interaction. Ethology – Study of animal behaviour – study of natural or biological character. Ethonomics – Personal value, basis for ethical actionPages displaying short descriptions of redirect targets – study of economic and ethical principles of a society. Etiology – Study of causation, or origination Etymology – Study of the origin and evolution of words – study of origins of words. Euthenics – Study of improving living conditions to increase well-being – science concerned with improving living conditions. Exobiology – Science concerned with life in the universePages displaying short descriptions of redirect targets – study of extraterrestrial life. Exoplanetology – study of exoplanets.
F Felinology – Study of cats – study of felines. Finance – Academic discipline studying businesses and investments – science or study of money management. Fluid dynamics – Aspects of fluid mechanics involving fluid flow Fluid mechanics – Branch of physics – study of fluids behaviour at rest and in motion. Fluid statics – Branch of fluid mechanics that studies fluids at restPages displaying short descriptions of redirect targets – study of fluids behaviour at rest. Fluviology – study of watercourses. Folkloristics – Branch of anthropologyPages displaying short descriptions of redirect targets – study of folklore and fables. Forestry – Science and craft of managing woodlands – study of the creation, management, use, conservation, and repair of forests and associated resources. Fracture mechanics – Study of propagation of cracks in materials Futurology – Study of postulating possible, probable, and preferable futures Forensic science – Application of science to law and investigation – the use of scientific methods or expertise to investigate crimes or examine evidence that might be presented in a court of law
G Garbology – Study of modern refuse Gastroenterology – Branch of medicine focused on the digestive system and its disorders Gastronomy – Study of the relationship between food and culture Gemmology – Science dealing with natural and artificial gemstone materialsPages displaying short descriptions of redirect targets – study of gems and jewels Gender studies – Interdisciplinary field of study – study of gender Genealogy – Study of family lineage and history – study of descent of families Genesiology – study of reproduction and heredity Genetics – Science of genes, heredity and variation Geochemistry – Science that applies chemistry to analyze geological systems – study of chemistry of the Earth's crust Geochronology – Science of determining the age of rocks, sediments and fossils – study of measuring geological time Geography – Study of Earth's spatial information – study of surface of the earth and its inhabitants Geology – Scientific study of Earth's physical composition – study of the rocks of a planet Geometry – Branch of mathematics – study the sizes, shapes, positions, angles and dimensions of things. Geomorphogeny – study of the characteristics, origins, and development of land forms Geomorphology – Scientific study of landforms – study of landforms and landform evolution Geoponics – Science of cultivating the earth – study of agriculture Geotechnics – Scientific study of earth materials in engineering problemsPages displaying short descriptions of redirect targets – study of increasing habitability of the Earth Geratology – Study of the biological, psychological, and social aspects of agingPages displaying short descriptions of redirect targets – study of decadence and decay Gerocomy – study of old age Gerontology – Study of the biological, psychological, and social aspects of aging Gigantology – study of giants Glaciology – Scientific study of ice and natural phenomena involving ice Glossology – Scientific study of languagePages displaying short descriptions of redirect targets – study of language; study of the tongue Gnomonics – Study of sundials – the art of measuring time using sundials Gnotobiology – Organism with fully-known microorganismsPages displaying short descriptions of redirect targets – study of life in germ-free conditions Googology – Numbers significantly larger than those used regularlyPages displaying short descriptions of redirect targets – study of large numbers Graminology – Scientific study of the grassesPages displaying short descriptions of redirect targets Grammatology – Study of graphemes and writing systemsPages displaying short descriptions of redirect targets – study of systems of writing Graphemics – Study of graphemes and writing systemsPages displaying short descriptions of redirect targets – study of systems of representing speech in writing Graphology – Pseudoscientific analysis of handwriting – study of handwriting Gromatics – Ancient Roman land surveyorsPages displaying short descriptions of redirect targets – science of surveying Gynaecology – Medical area for women's reproductive health – study of women's physiology Gyrostatics – study of rotating bodies
H Haemataulics – study of movement of blood through blood vessels Halieutics – study of fishing Harmonics – Science of musical sounds Helcology – study of ulcers Heliology – Scientific study of the sun Helioseismology – Study of the structure and dynamics of the Sun through its oscillation Helminthology – Study of parasitic worms (helminths) Hematology – Study of blood and blood diseases Hemodynamics – Dynamics of blood flow – study of the dynamics behind blood circulation Hepatology – Medical specialty – study of liver, gallbladder, biliary tree, and pancreas Hermeology – study of Mercury Herpetology – Study of amphibians and reptiles Hippiatrics – study of diseases of horses Hippology – Study of horses Histology – Study of the microscopic anatomy of cells and tissues of plants and animals Histopathology – Microscopic examination of tissue in order to study and diagnose disease,. – study of changes in tissue due to disease Historiography – Study of the methods used by historians Historiology – The study of history. Home economics – Study of household management Hoplology – Study of human combative behavior and performance Horography – art of constructing sundials or clocks Horology – Art or science of measuring time – science of time measurement Horticulture – Small-scale cultivation of plants – study of gardening Hydraulics – Applied engineering involving liquids – study of application of engineering, chemistry and other fields of science involving the use of liquids Hydrobiology – Science of life and life processes in water – study of aquatic organisms Hydrodynamics – Study of liquids in motion Hydrogeology – Study of groundwater's movement and distribution Hydrography – Measurement of bodies of water Hydrokinetics – study of motion of fluids Hydrology – Science of the movement, distribution, and quality of water on Earth – study of water resources Hydrometeorology – Branch of meteorology and hydrology – study of atmospheric moisture Hydrostatics – Branch of fluid mechanics that studies fluids at rest Hyetology – science of rainfall Hygiastics – science of health and hygiene Hygienics – Practices performed to preserve healthPages displaying short descriptions of redirect targets – study of sanitation; health Hygiology – hygienics; study of cleanliness Hygroscopy – Phenomenon of attracting and holding water molecules – study of humidity Hygrometry – Study of gas-vapor mixturesPages displaying short descriptions of redirect targets – science of humidity Hypnology – Study of sleep and hypnotic phenomena – study of sleep; study of hypnosis. Hypsography – Geographical measurementPages displaying short descriptions of redirect targets – science of measuring heights
I Iamatology – Obsolete synonym for the study of therapies. Iatrology – treatise or text on medical topics; study of medicine Ichnography – Architectural drawing showing interior layout of a buildingPages displaying short descriptions of redirect targets – art of drawing ground plans; a ground plan Ichnology – Study of trace fossils Ichthyology – Scientific study of fish Iconography – Branch of art history – study of drawing symbols Iconology – Method of interpretation in cultural history – study of icons; symbols Ideogeny – study of origins of ideas Ideology – Set of beliefs or values – science of ideas; system of ideas used to justify behaviour Idiomology – study of idiom, jargon or dialect Idiopsychology – study of the psychology of one's own mind Immunochemistry – Study of the chemistry of the immune system Immunogenetics – Branch of medical genetics – study of genetic characteristics of immunity Immunology – Branch of medicine studying the immune system Immunopathology – Branch of medicine that deals with immune responses associated with disease Information science – Academic field concerned with collection and analysis of information Information technology (IT) – Computer-based technologies Insectology – Scientific study ofi insects, or relationships between insects and humans Irenology – Social science study of peace – study of peace
J Japanology – Area studies focused on JapanPages displaying short descriptions of redirect targets – The study of Japan, its language, culture and history
K Kalology – study of beauty Karstology – Scientific study of the various aspects of karst regions Karyology – Photographic display of total chromosome complement in a cellPages displaying short descriptions of redirect targets – study of cell nuclei Kinematics – Branch of physics describing the motion of objects without considering forces – study of motion Kinesics – Interpretation of body motion communication – study of gestural communication Kinesiology – Study of human body movement – study of human movement and posture Kinetics – Subfield of physics – study of forces producing or changing motion Koniology – Study of atmospheric dust and its effects – study of atmospheric pollutants and dust Ktenology – Scientific study of killing Kymatology – Branch of physicsPages displaying short descriptions of redirect targets – study of wave motion
L Larithmics – study of population statistics Laryngology – Medical specialty that deals with the larynx Lepidopterology – Branch of entomology that studies moths and butterflies Leprology – The study of leprosy and its treatment Lexicology – Linguistic discipline studying words – study of words and their meanings Lexigraphy – Grapheme which represents a word or a morphemePages displaying short descriptions of redirect targets – art of definition of words Library science – Branch of academic disciplines – study of collection of information Lichenology – Branch of mycology that studies lichens Library and information science – Branch of academic disciplines – study of organization, access, collection, and protection/regulation of information, whether in physical or digital forms. Limacology – Study of slugs Limnobiology – study of freshwater ecosystems Limnology – Science of inland aquatic ecosystems Linguistics – Scientific study of language Loimology – study of plagues and epidemics Logics – Study of correct reasoning Loxodromy – study of sailing along rhumb-lines Ludology – Study of games and the act of playing them
M Macroeconomics – Study of an economy as a whole – branch of economics dealing with the performance, structure, behavior, and decision-making of the whole economy Magnetics – Class of physical phenomenaPages displaying short descriptions of redirect targets – study of magnetism Magnetohydrodynamics – Model of electrically conducting fluids – study of electrically conducting fluids Magnetostatics – Branch of physics about magnetism in systems with steady electric currents – study of magnetic fields in systems where the currents are steady Malacology – Study of molluscs Malariology – Study of the mosquito borne disease, malaria Mammalogy – Study of mammals Marine biology – Scientific study of ocean life – study of the ocean's ecosystem Mastology – Study of mammals – study of mammals Mathematics – Field of knowledge – study of magnitude, number, and forms Mazology – mammalogy; study of mammals Mechanics – Science concerned with physical bodies subjected to forces or displacements Meconology – study of or treatise concerning opium Media studies – Field of study that deals with media Medicine – Diagnosis, treatment, and prevention of illness Melissopalynology – Study of pollen contained in honey Melittology – Scientific study of bees Melology – Scholarly study of musicPages displaying short descriptions of redirect targets – study of music; musicology Mereology – Study of parts and the wholes they form – study of part-whole relationships Mesology – Study of organisms and their environmentPages displaying short descriptions of redirect targets – ecology Metallogeny – Study of the genesis and geographic distribution of mineral deposits – study of the origin and distribution of metal deposits Metallography – Study of metals using microscopy – study of the structure and constitution of metals Metallurgy – Field of science that studies the physical and chemical behavior of metals Metaphysics – Study of fundamental reality – study of principles of nature and thought Metapolitics – Political discourse about politics itself – study of politics in theory or abstract Metapsychology – Psychological aspect – study of nature of the mind Metascience – Scientific study of science Meteoritics – Scientific study of meteors, meteorites and meteoroids Meteorology – Scientific study of the atmosphere focusing on weather forecasting Methodology – Study of research methods Methyology – study of alcohol Metrology – Science of measurement and its application Microanatomy – Study of the microscopic anatomy of cells and tissues Microbial ecology – Study of the relationship of microorganisms with their environment Microbiology – Study of microscopic organisms (microbes) Microclimatology – Local set of atmospheric conditions that differ significantly from the surrounding areaPages displaying short descriptions of redirect targets – study of local climates Microeconomics – Behavior of individuals and firms – branch of economics that studies the behavior of individual households and firms in making decisions on the allocation of limited resources Micrology – study or discussion of trivialities Micropalaeontology – Branch of paleontology that studies microfossils Microphytology – study of very small plant life Military science – Theory, method, and practice of producing military capability Mineralogy – Scientific study of minerals and mineralised artifacts Molecular biology – Branch of biology that studies biological systems at the molecular level Molinology – Study of devices which use energy for mechanical purposes Momilogy – study of mummies Morphology – study of forms and the development of structures Morphometrics – Quantitative study of size and shape – study of size and shape Muscology – Branch of botany concerned with the study of bryophytesPages displaying short descriptions of redirect targets – study of mosses Museology – Study of museums Musicology – Scholarly study of music – study of music Mycology – Study of fungi Myology – Study of the muscular system – study of muscles Myrmecology – Study of ants Mythology – Type of traditional narrativePages displaying short descriptions of redirect targets – study of myths; fables; tales
N Naology – study of church or temple architecture Nautics – study and art of navigation Navigation – Process of monitoring and controlling the movement of a craft or vehicle – study of controlling a movement of a vehicle from one place to another Necroplanetology – Study of the process of planetary destruction – study of the destruction of planets Nematology – Scientific study of roundworms Neonatology – Medical care of newborns, especially the ill or premature Neossology – study of nestling birds Nephology – Scientific study of clouds Nephrology – Medical study concerned with the kidneys Neurobiology – Scientific study of the nervous system Neuroeconomics – Interdisciplinary field – study of human decision making and the ability to process multiple alternatives and to choose an optimal course of action Neurology – Medical specialty dealing with disorders of the nervous system Neuropsychology – Study of the brain related to specific psychological processes and behaviors Neuroscience – Scientific study of the nervous system – study of development, work and structure of nervous system Neurypnology – study of hypnotism Neutrosophy – study of the origin and nature of philosophical neutralities Nomology – Science of laws in philosophy Noology – Spanish philosopher (1898–1983)Pages displaying short descriptions of redirect targets – science of the intellect Nosology – Branch of medicine that deals with classification of diseases Nostology – study of senility Notaphily – Study and collection of paper currency – study and collecting of bank-notes and cheques Numismatics – Study of currencies, coins and paper money Nymphology – study of nymphs Nanotechnology – Technology with features near one nanometer
O Obstetrics – Medical specialty concerning pregnancy and childbirth Oceanography – Scientific study of the ocean Oceanology – Scientific study of the ocean Odontology – Scientific study of teeth Odonatology – Study of dragonflies and damselflies Oenology – Study of wine and winemaking Oikology – science of housekeeping Olfactology – study of the sense of smell Ombrology – study of rain Oncology – Branch of medicine dealing with, or specializing in, cancer Oneirology – Scientific study of dreams Onomasiology – Branch of linguistics concerned with how to express a given concept – study of nomenclature Onomastics – Study of proper names Ontology – Philosophical study of being – science of pure being; the nature of things Oology – Branch of ornithology studying bird eggs, nests and breeding behavior Ophiology, also known as ophidiology – Branch of herpetology that studies snakes Ophthalmology – Field of medicine treating eye disorders Optics – Branch of physics that studies light Optology – study of sight Optometry – Field of medicine treating eye disorders – science of examining the eyes Orbital mechanics – Field of classical mechanics concerned with the motion of spacecraft Orchidology – Scientific study of orchids Ornithology – Scientific study of birds Organology – Collection of tissues with similar functionsPages displaying short descriptions of redirect targets (biology) – study of form, structure, development, and functions of plant or animal organs Organology – Science of musical instruments and their classifications (musicology) – study of musical instruments in relation to history, culture, construction, acoustic properties and classification Orology, also known as Mountain research – Study of mountain environments Orthoepy – Correct pronunciation of a language Orthography – Set of conventions for written language Orthopterology – Study of grasshoppers and related insects Oryctology – mineralogy or paleontology Osmics – scientific study of smells Osmology – study of smells and olfactory processes Osphresiology – study of the sense of smell Osteology – Scientific study of bones Otology – Branch of medicine for the ear Otorhinolaryngology – Medical specialty of the head and neck
P Paedology – Study of children's behavior and development Paidonosology – study of children's diseases; pediatrics Palaeoanthropology – Study of ancient humans Palaeobiology – Study of organic evolution using fossils Palaeoclimatology – Study of changes in ancient climate Palaeoichthyology – study of ancient fish Palaeolimnology – Scientific study of ancient lakes and streams Palaeontology – Study of life before the Holocene epoch Palaeopedology – Discipline studying soils of the past eras Paleobotany – Study of organic evolution of plants based on fossils Paleo-osteology – study of ancient bones Paleoseismology – Study of earthquakes that happened in the past Palynology – Study of pollen and other acid-resistant microoscopic organic material Papyrology – Scientific study of ancient manuscripts Paradoxology – Logically self-contradictory statementPages displaying short descriptions of redirect targets – study of paradoxes Parapsychology – Study of paranormal and psychic phenomena Parasitology – Study of parasites, their hosts, and the relationship between them Paroemiology – study of proverbs Parthenology – study of virgins Particle physics – Study of subatomic particles and forces Pathology – Study of disease Pedagogics – Theory and practice of educationPages displaying short descriptions of redirect targets Pedology – Study of soils in their natural environment Pelology – study of mud Penology – Subfield of criminology – study of crime and punishment Periodontology, also known as Periodontics – Field of dentistry Pestology – Scientific study of insectsPages displaying short descriptions of redirect targets – science of pests Petrology – Study of rocks in geology Pharmacognosy – Study of drugs obtained from natural sources Pharmacology – Science of drugs and medications and their effects Pharology – Scientific study of lighthouses and signal lights Pharyngology – study of the throat Phenology – Study of periodic events in biological life cycles Phenomenology – Philosophical method and schools of philosophy – study of phenomena Philology – Subfield of linguistics which studies language in historical sources Philosophy – Study of general and fundamental questions – science of knowledge or wisdom Phoniatrics – Sudy and treatment of organs involved in speech production Phonetics – Study of how humans produce and perceive sounds Phonology – Study of sound organization in languages Photobiology – Scientific study of light's effect on living organisms Photonics – Technical applications of optics – study of photons Phraseology – Linguistic study of phrases Phycology – Branch of biology concerned with the study of algae Phylogenetics, also known as Phylogeny – Study of evolutionary relationships between organisms Physics – Scientific field of study Physiology – Science regarding functions in organisms or living systems Phytology, also known as Botany – Study of plant life Piscatology – study of fishes Pisteology – science or study of faith Planetary science, also known as Planetology – Science of planets and planetary systems Plumology – Study of feathers Plutology – political economy; study of wealth Pneumatics – Use of pressurised gas in mechanical systems – study of mechanics of gases Pneumonology – Study of respiratory diseases Podiatry, also known as Podology – Medicine branch focusing on the human lower extremities Political science – Scientific study of politics and social science Polemology – Multidisciplinary study of war Pomology – Study of fruits and their cultivation Pogonology – Hair on the chin, lower face and neckPages displaying short descriptions of redirect targets – study of beards Posology – Study of dosage of medicines Potamology – Study of rivers Pragmatics – Branch of linguistics and semiotics relating context to meaning Praxeology – Theory of human action Primatology – Scientific study of primates Proctology – Study of the structure and diseases of the anus, rectum, and sigmoid colon Protistology – Scientif